CN111442451A - Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof - Google Patents
Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof Download PDFInfo
- Publication number
- CN111442451A CN111442451A CN202010248439.1A CN202010248439A CN111442451A CN 111442451 A CN111442451 A CN 111442451A CN 202010248439 A CN202010248439 A CN 202010248439A CN 111442451 A CN111442451 A CN 111442451A
- Authority
- CN
- China
- Prior art keywords
- section
- air
- fresh air
- working condition
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000000746 purification Methods 0.000 claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000013618 particulate matter Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 238000004378 air conditioning Methods 0.000 description 6
- 239000000443 aerosol Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- COCAUCFPFHUGAA-MGNBDDOMSA-N n-[3-[(1s,7s)-5-amino-4-thia-6-azabicyclo[5.1.0]oct-5-en-7-yl]-4-fluorophenyl]-5-chloropyridine-2-carboxamide Chemical compound C=1C=C(F)C([C@@]23N=C(SCC[C@@H]2C3)N)=CC=1NC(=O)C1=CC=C(Cl)C=N1 COCAUCFPFHUGAA-MGNBDDOMSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a variable working condition fresh air unit aiming at pollution concentration dynamic fluctuation, which comprises a case, wherein the case is sequentially divided into a primary filtering section, a surface cooling section, a variable working condition section and an air outlet section along the fresh air flowing direction, the variable working condition section consists of a low-resistance air section and a deep purification air section, the deep purification air section is provided with a main filter, a particle concentration sensor is arranged in front of an air inlet of the variable working condition section, and fresh air entering the case from a fresh air inlet completely enters the low-resistance air section or completely enters the deep purification air section or a part of the low-resistance air section and the other part of the deep purification air section according to the pollution degree detected by the particle concentration sensor. According to the invention, by changing the structure and the purification process flow of the fresh air unit, the bioaerosol bred by the surface air cooler can be effectively filtered on the basis of realizing the variable working condition operation of the fresh air unit, the replacement frequency of the main filter and the resistance of the whole system are reduced, and the energy consumption and the maintenance cost of the system are effectively reduced.
Description
Technical Field
The invention belongs to the technical field of air treatment equipment, and particularly relates to a variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and an operation control method thereof.
Background
Aerosol pollution of indoor air, including bioaerosols, is of increasing concern. Traditional air conditioning technology and equipment all adopt the operating mode operation surely to air purification's processing, can't adapt to the outdoor particulate matter concentration that our country city acutely fluctuated throughout the year, also can't deal with epidemic situation emergency, lead to current air conditioning unit or filtration system inefficiency, purification effect when can't guarantee that atmospheric pollution is serious or the epidemic situation takes place, or filtration system resistance is big, and system operation energy consumption is high, the filter is changed frequently, causes the maintenance cost height.
In order to solve the technical problems, in the prior art, the invention patent (publication number CN103267326A) discloses a fresh air system for improving indoor air cleanliness and an operation control method thereof, wherein a bypass fresh air system is arranged to control indoor environmental particulate pollution in haze weather without increasing the resistance of an air conditioning system under normal working conditions, so that the operation is economical and the control is simple and convenient; the invention discloses an air-conditioning box for controlling indoor air pollution in haze weather and an operation method thereof (publication No. CN 103322628A). The air-conditioning box controls indoor environment particulate pollution in haze weather by dividing a fresh air filtering section into an upper fresh air duct and a lower fresh air duct which are mutually independent, wherein fresh air enters a mixing section from the lower fresh air duct under the normal working condition, and fresh air enters the mixing section from the upper fresh air duct under the normal working condition, so that the indoor environment particulate pollution in haze weather is controlled, the resistance of an air-conditioning system under the normal working condition is not increased, and the operation is economic and the control is simple and convenient.
However, the main filter is arranged at the front end of the surface air cooler in the two patents, so that the biological aerosol bred by the surface air cooler cannot be effectively filtered, and meanwhile, the treated air passes through the main filter, so that the frequent replacement of the main filter and the resistance of the whole system cannot be effectively reduced, and the energy consumption of the system is higher.
Disclosure of Invention
The invention aims to: aiming at the problems, the variable working condition fresh air handling unit and the operation control method thereof aiming at the dynamic fluctuation of the pollution concentration can reduce the replacement frequency of the main filter and effectively filter the biological aerosol.
The technical scheme of the invention is realized as follows: the utility model provides a become operating mode fresh air unit to pollution concentration dynamic fluctuation, includes quick-witted case, the both ends of machine case are fresh air inlet and fresh air outlet, its characterized in that respectively: the machine case divide into in proper order along new trend flow direction and just strains section, table cold section, variable operating mode section and air-out section, variable operating mode section comprises low resistance wind section and degree of depth purification wind section, the degree of depth purification wind section is provided with main filter the place ahead of variable operating mode section air intake department is provided with particulate matter concentration sensor, and the pollution degree that the new trend that gets into quick-witted incasement by the new trend entry detects according to particulate matter concentration sensor, and the low resistance wind section of whole entering or all entering degree of depth purification wind section or some get into low resistance wind section, and another part gets into degree of depth purification wind section.
The primary filter section of the variable working condition fresh air handling unit for the dynamic fluctuation of the pollution concentration comprises a primary filter and a medium-efficiency filter which are arranged in a machine case, wherein the primary filter and the medium-efficiency filter are sequentially arranged at intervals along the flow direction of fresh air, namely, the fresh air entering the machine case from a fresh air inlet is sequentially filtered by the primary filter and the medium-efficiency filter.
The surface cooling section of the variable working condition fresh air handling unit for the dynamic fluctuation of the pollution concentration comprises a surface cooler arranged in a case, and fresh air filtered by the primary filtering section is sent to the surface cooler of the surface cooling section for processing.
The invention relates to a variable working condition fresh air handling unit aiming at pollution concentration dynamic fluctuation, wherein a humidifying section is arranged between a surface cooling section and a variable working condition section, the humidifying section comprises a humidifier arranged in a case, and fresh air in the case is subjected to heat and humidity treatment through the surface cooling section and the humidifying section.
According to the variable working condition fresh air unit aiming at the dynamic fluctuation of the pollution concentration, the air outlet section comprises a first fan arranged in the case, and the first fan is used for sending out the fresh air exhausted by the variable working condition section through a fresh air outlet.
The low-resistance air section of the variable-working-condition fresh air handling unit for the dynamic fluctuation of the pollution concentration comprises a low-resistance channel, and a first air valve and a second air valve which are arranged at openings at two ends of the low-resistance channel.
The invention relates to a variable working condition fresh air unit aiming at the dynamic fluctuation of pollution concentration, wherein a deep purification air section comprises a deep purification channel, a main filter, a third air valve and a second fan, wherein the main filter, the third air valve and the second fan are arranged in the deep purification channel, the third air valve is arranged at an air inlet end of the deep purification channel, and the second fan is arranged at an air outlet end of the deep purification channel and is used for discharging fresh air filtered by the main filter out of the deep purification channel.
The invention relates to a variable working condition fresh air handling unit aiming at the dynamic fluctuation of pollution concentration, wherein a low-resistance air section and a deep purification air section of a variable working condition section are arranged along the axial direction of a case and are separated into mutually independent ventilation channels, and the section area A of the deep purification channel1Greater than the cross-sectional area A of the low resistance passage2。
The invention relates to an operation control method of a variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration, which is characterized by comprising the following steps: the specific control method comprises the following steps:
in normal working conditions, the third air valve is closed, the first air valve and the second air valve are opened, fresh air firstly enters the unit from a fresh air inlet, is purified by sequentially passing through a primary filter and a middle filter, is subjected to heat and humidity treatment by passing through a surface cooling section and a humidifying section, and then enters an air outlet section from a low-resistance air section and is sent out from a fresh air outlet by passing through a first fan;
when the air is in a medium pollution working condition, according to the air particulate matter concentration detected by a particulate matter concentration sensor, the opening degrees of a first air valve, a second air valve and a third air valve are adjusted, a second fan is started, fresh air firstly enters a unit from a fresh air inlet, is purified through a primary filter and a medium-efficiency filter in sequence, is subjected to heat and humidity treatment through a surface cooling section and a humidifying section, one part of air flows through a low-resistance channel, the other part of air flows through a deep purification channel, air in the deep purification channel is filtered by a main filter, is sent out by the second fan, is mixed with air in the low-resistance channel at an air outlet section, and is sent out through a fresh air outlet by the first fan;
when the working condition is heavily polluted, the first air valve and the second air valve are closed, the third air valve is opened, the second fan is started, fresh air firstly enters the unit from a fresh air inlet, is purified sequentially through the primary filter and the intermediate filter, is subjected to heat and humidity treatment through the surface cooling section and the humidifying section, flows through the deep purification channel, is filtered through the main filter, is sent into the air outlet section through the second fan, and is sent out through the fresh air outlet through the first fan.
The invention relates to a variable working condition fresh air handling unit aiming at the dynamic fluctuation of pollution concentration, wherein the section area A of the deep purification channel of the variable working condition fresh air handling unit1The determination method comprises the following steps:
in the formula, Q is the total air volume of the fresh air handling unit; v1The face wind speed of the main filter;
of said low resistance channelCross sectional area A2The determination method comprises the following steps:
in the formula, Q is the total air volume of the fresh air handling unit; v2Wind speed for a low resistance path;
when the air is operated under the medium pollution working condition, the concentration of the air particulate matters detected by the particulate matter concentration sensor is C0And the air flow of the deep purification channel is enabled to be Q by adjusting the opening degrees of the first air valve, the second air valve and the third air valve and adjusting the operating frequency of the second fan1Air flow rate of the low resistance passage is Q2And meets the requirements of the following formula:
Q＝Q1+Q2
in the formula, CnConcentration of particulate matter in air fed into room for fresh air outlet ηzIs the efficiency of the primary filter; cbIs the standard allowable particulate matter concentration.
The invention mainly aims at the variable working condition of the dynamic fluctuation of the pollution concentration, can effectively filter the bioaerosol possibly bred by a surface air cooler on the basis of realizing the variable working condition operation of the fresh air unit by changing the structure and the purification process flow of the fresh air unit, and in the operation process of the fresh air unit, not all air under the working condition needs to be filtered by the main filter, thereby effectively reducing the replacement frequency of the main filter and the resistance of the whole system according to the working condition requirements and effectively reducing the energy consumption and the maintenance cost of the system.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an operation control flowchart of the present invention.
The labels in the figure are: 1 is the machine case, 2 is the new trend entry, 3 is the new trend export, 4 is the primary filter section, 5 is the surface cooling section, 6 is the variable working condition section, 7 is the air-out section8, a particle concentration sensor, 9, a humidification stage, 41, a primary filter, 42, a secondary filter, 51, a surface cooler, 61, a low resistance air stage, 71, a first fan, 91, a humidifier, 611, a low resistance channel, 612, a first air valve, 613, a second air valve, 62, a deep purification air stage, 621, a deep purification channel, 622, a main filter, 623, a third air valve, 624, a second fan, ClowThe concentration boundary value of the normal working condition and the medium pollution working condition, ChighThe concentration boundary value of the severe pollution working condition and the moderate pollution working condition.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the present invention with reference to the accompanying drawings and embodiments will be made in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in figure 1, a become operating mode fresh air unit to pollutant concentration dynamic fluctuation, includes quick-witted case 1, the both ends of quick-witted case 1 are fresh air inlet 2 and fresh air outlet 3 respectively, quick-witted case 1 divide into in proper order along the fresh air flow direction and just strain section 4, table cold section 5, become operating mode section 6 and air-out section 7.
In this embodiment, the primary filter section 4 includes a primary filter 41 and a middle-effect filter 42 disposed in the chassis 1, and the primary filter 41 and the middle-effect filter 42 are sequentially arranged at intervals along the fresh air flowing direction, that is, the fresh air entering the chassis 1 from the fresh air inlet 2 is sequentially filtered by the primary filter 41 and the middle-effect filter 42; the surface cooling section 5 comprises a surface cooler 51 arranged in the case 1, and the fresh air filtered by the primary filtering section 4 is sent to the surface cooler 51 of the surface cooling section 5 for treatment; a humidifying section 9 is arranged between the surface cooling section 5 and the variable working condition section 6, the humidifying section 9 comprises a humidifier 91 arranged in the case 1, and the fresh air in the case 1 is subjected to heat and humidity treatment through the surface cooling section 5 and the humidifying section 9; the air outlet section 7 comprises a first fan 71 arranged in the case 1, and the first fan 71 is used for sending out the fresh air exhausted by the variable working condition section 6 from the fresh air outlet 3.
Wherein, it comprises low resistance wind section 61 and degree of depth purification wind section 62 to become operating condition section 6, degree of depth purification wind section 62 is provided with main filter 622 become the place ahead of operating condition section 6 air intake department is provided with particulate matter concentration sensor 8, gets into the pollution degree that the new trend in quick-witted case 1 detected by new trend entry 2 according to particulate matter concentration sensor 8, and whole entering low resistance wind section 61 or whole entering degree of depth purification wind section 62 or some enter low resistance wind section 61, and another part gets into degree of depth purification wind section 62.
Specifically, the low resistance wind segment 61 includes a low resistance channel 611 and a first wind valve 612 and a second wind valve 613 disposed at openings at both ends of the low resistance channel 611; the deep-purification air section 62 includes a deep-purification channel 621, and a main filter 622, a third air valve 623 and a second fan 624 which are arranged in the deep-purification channel 621, wherein the third air valve 623 is arranged at an air inlet end of the deep-purification channel 621, and the second fan 624 is arranged at an air outlet end of the deep-purification channel 621, and is used for discharging the fresh air filtered by the main filter 622 out of the deep-purification channel 621.
In this embodiment, the low resistance wind section 61 and the deep purification wind section 62 of the variable operation section 6 are both arranged along the axial direction of the case and separated into independent ventilation channels, and the cross-sectional area a of the deep purification channel 6211Greater than the cross-sectional area A of the low resistance channel 6112(ii) a Ultraviolet disinfection lamps are installed at positions close to the middle-effect filter 42 and the main filter 622 for sterilizing and killing bacteria and viruses of air and filter dust flowing through, and the first fan 71 and the second fan 624 can be alternating current fans or direct current fans.
As shown in fig. 2, an operation control method for a variable condition fresh air handling unit with dynamic fluctuation of pollution concentration specifically includes:
at normal operating conditions, i.e. C0≤ClowWhen the fresh air enters the unit from the fresh air inlet 2, the fresh air firstly enters the unit through the third air valve 623 and the first air valve 612 and the second air valve 613, is purified through the primary filter 41 and the intermediate filter 42 in sequence, and is heated through the surface cooling section 5 and the humidifying section 9After wet treatment, all air enters the air outlet section 7 through the low-resistance air section 61 and is sent out from the fresh air outlet 3 through the first fan 71.
In medium-polluting conditions, i.e. Clow≤C0≤ChighDuring the process, according to the air particulate concentration detected by the particulate concentration sensor 8, the opening degrees of the first air valve 612, the second air valve 613 and the third air valve 623 are adjusted, the second fan 624 is started, fresh air firstly enters the unit from the fresh air inlet 2, is purified sequentially through the primary filter 41 and the secondary filter 42, is subjected to heat and humidity treatment through the surface cooling section 5 and the humidifying section 9, one part of air flows through the low-resistance channel 611, the other part of air flows through the deep purification channel 621, air in the deep purification channel 621 is filtered by the main filter 622, is sent out by the second fan 624, is mixed with air in the low-resistance channel 611 in the air outlet section 7, and is sent out by the fresh air outlet 3 through the first fan 71.
In heavily polluted conditions, i.e. C0≥ChighWhen the fresh air enters the unit from the fresh air inlet 2, the fresh air sequentially passes through the primary filter 41 and the intermediate filter 42 for purification, then passes through the surface cooling section 5 and the humidifying section 9 for heat and humidity treatment, and then all the air passes through the deep purification channel 621, is filtered by the main filter 622, then is sent to the air outlet section 7 by the second fan 624, and is sent out from the fresh air outlet 3 by the first fan 71.
Wherein, the section area A of the deep purification channel 6211The determination method comprises the following steps:
in the formula, Q is the total air volume of the fresh air handling unit; v1The face wind speed of the main filter;
cross-sectional area A of the low resistance channel 6112The determination method comprises the following steps:
in the formula, V2The wind speed is a low resistance path.
When the air is operated under the medium pollution working condition, the concentration of the air particulate matters detected by the particulate matter concentration sensor 8 is C0The air flow rate of the deep cleaning channel 621 is made to be Q by adjusting the opening degrees of the first air valve 612, the second air valve 613 and the third air valve 623 and adjusting the operating frequency of the second fan 6241Air flow rate of low resistance channel 611 is Q2And meets the requirements of the following formula:
Q＝Q1+Q2
in the formula, CnConcentration of particulate matter in air fed into room for fresh air outlet ηzIs the efficiency of the primary filter; cbIs the standard allowable particulate matter concentration.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a become operating mode fresh air unit to polluted concentration dynamic fluctuation, includes quick-witted case (1), the both ends of quick-witted case (1) are fresh air inlet (2) and fresh air outlet (3) respectively, its characterized in that: case (1) is divided into in proper order along new trend flow direction and is just strained section (4), table cold section (5), variable working condition section (6) and air-out section (7), variable working condition section (6) comprises low resistance wind section (61) and degree of depth purification wind section (62), degree of depth purification wind section (62) are provided with main filter (622) the place ahead of variable working condition section (6) air inlet department is provided with particulate matter concentration sensor (8), gets into the pollution degree that fresh air in case (1) detected according to particulate matter concentration sensor (8) by new trend entry (2), and whole entering low resistance wind section (61) or whole entering degree of depth purification wind section (62) or some get into low resistance wind section (61), and another part gets into degree of depth purification wind section (62).
2. The variable condition fresh air handling unit for the dynamic fluctuation of the pollution concentration according to claim 1, characterized in that: primary filter section (4) are including setting up primary filter (41) and medium efficiency filter (42) in quick-witted case (1), primary filter (41) and medium efficiency filter (42) are along new trend flow direction interval arrangement in proper order, and the new trend that new trend entry (2) got into in quick-witted case (1) carries out filtration treatment through primary filter (41) and medium efficiency filter (42) in proper order promptly.
3. The variable condition fresh air handling unit for the dynamic fluctuation of the pollution concentration according to claim 2, characterized in that: the surface cooling section (5) comprises a surface cooler (51) arranged in the case (1), and fresh air filtered by the primary filtering section (4) is sent into the surface cooler (51) of the surface cooling section (5) for treatment.
4. The variable condition fresh air handling unit for the dynamic fluctuation of pollution concentration according to claim 3, characterized in that: be provided with humidification section (9) between table cold section (5) and variable working condition section (6), humidification section (9) are including setting up humidifier (91) in quick-witted case (1), the new trend in quick-witted case (1) carries out the heat and moisture processing through table cold section (5) and humidification section (9).
5. The variable condition fresh air handling unit for the dynamic fluctuation of the pollution concentration according to claim 1, characterized in that: the air outlet section (7) comprises a first fan (71) arranged in the case (1), and the first fan (71) is used for sending out fresh air exhausted by the variable working condition section (6) through a fresh air outlet (3).
6. The variable-condition fresh air handling unit for the dynamic fluctuation of the pollution concentration according to any one of claims 1 to 5, wherein: the low-resistance air section (61) comprises a low-resistance channel (611) and a first air valve (612) and a second air valve (613) which are arranged at openings at two ends of the low-resistance channel (611).
7. The variable condition fresh air handling unit for the dynamic fluctuation of the pollution concentration according to claim 6, characterized in that: the deep purification air section (62) comprises a deep purification channel (621) and a main filter (622), a third air valve (623) and a second fan (624) which are arranged in the deep purification channel (621), wherein the third air valve (623) is arranged at the air inlet end of the deep purification channel (621), and the second fan (624) is arranged at the air outlet end of the deep purification channel (621) and is used for discharging fresh air filtered by the main filter (622) out of the deep purification channel (621).
8. The variable condition fresh air handling unit for the dynamic fluctuation of pollution concentration according to claim 7, characterized in that: become low resistance wind section (61) and the degree of depth of operating mode section (6) and purify wind section (62) and all arrange and separate for mutually independent ventilation channel along quick-witted case axial, the sectional area A of degree of depth purification passageway (621)1Is larger than the cross-sectional area A of the low resistance channel (611)2。
9. The operation control method of the variable condition fresh air handling unit aiming at the dynamic fluctuation of the pollution concentration as claimed in claims 1 to 8, wherein: the specific control method comprises the following steps:
in normal working conditions, the third air valve (623) is closed, the first air valve (612) and the second air valve (613) are opened, fresh air firstly enters the unit from a fresh air inlet (2), is purified sequentially through a primary filter (41) and a medium-efficiency filter (42), is subjected to heat and humidity treatment through a surface cooling section (5) and a humidifying section (9), and then all air enters an air outlet section (7) through a low-resistance air section (61) and is sent out through a fresh air outlet (3) through a first fan (71);
under the medium pollution working condition, the opening degrees of the first air valve (612), the second air valve (613) and the third air valve (623) are adjusted according to the air particulate matter concentration detected by the particulate matter concentration sensor (8), and the second fan (624) is started, fresh air firstly enters the unit from the fresh air inlet (2), is purified by the primary filter (41) and the middle filter (42) in sequence, is subjected to heat and humidity treatment by the surface cooling section (5) and the humidifying section (9), one part of air flows through the low-resistance channel (611), the other part of air flows through the deep purification channel (621), after the air in the deep purification channel (621) is filtered by the main filter (622), the air is sent out by the second fan (624), mixed with the air in the low-resistance channel (611) at the air outlet section (7), and sent out by the fresh air outlet (3) through the first fan (71);
when the working condition is heavily polluted, a first air valve (612) and a second air valve (613) are closed, a third air valve (623) is opened, a second fan (624) is started, fresh air firstly enters the unit from a fresh air inlet (2), sequentially passes through a primary filter (41) and a secondary filter (42) for purification, is subjected to heat and humidity treatment through a surface cooling section (5) and a humidifying section (9), then flows through a deep purification channel (621), is filtered by a main filter (622), is sent into an air outlet section (7) from the second fan (624), and is sent out from a fresh air outlet (3) through a first fan (71).
10. The variable condition fresh air handling unit for the dynamic fluctuation of the pollution concentration according to claim 9, characterized in that: the cross-sectional area A of the deep purification channel (621)1The determination method comprises the following steps:
A1≥Q/V1
in the formula, Q is the total air volume of the fresh air handling unit; v1The face wind speed of the main filter;
the cross-sectional area A of the low resistance channel (611)2The determination method comprises the following steps:
A2≥Q/V2
in the formula, Q is the total air volume of the fresh air handling unit; v2Wind speed for a low resistance path;
when the air is operated under the medium pollution working condition, the concentration of the air particulate matters detected by the particulate matter concentration sensor (8) is C0The air flow of the deep purification channel (621) is enabled to be Q by adjusting the opening degrees of the first air valve (612), the second air valve (613) and the third air valve (623) and adjusting the operating frequency of the second fan (624)1The air flow rate of the low resistance passage (611) is Q2And meets the requirements of the following formula:
Q＝Q1+Q2
Cn＝[C0×Q1+C0×Q2×(1-ηz)]/(Q1+Q2)≤Cb
in the formula, CnConcentration of particulate matter in air fed into room for fresh air outlet ηzIs the efficiency of the primary filter; cbIs the standard allowable particulate matter concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248439.1A CN111442451A (en) | 2020-04-01 | 2020-04-01 | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010248439.1A CN111442451A (en) | 2020-04-01 | 2020-04-01 | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111442451A true CN111442451A (en) | 2020-07-24 |
Family
ID=71649520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010248439.1A Pending CN111442451A (en) | 2020-04-01 | 2020-04-01 | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111442451A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460758A (en) * | 2020-11-16 | 2021-03-09 | 珠海格力电器股份有限公司 | Combined air conditioner, control method and storage medium |
| CN113864959A (en) * | 2021-10-19 | 2021-12-31 | 苏州沈氏净化设备有限公司 | Combined clean air conditioner box with variable filtering efficiency |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322628A (en) * | 2013-07-10 | 2013-09-25 | 中国建筑西南设计研究院有限公司 | Air conditioning cabinet for controlling indoor air pollution in haze days and operating method thereof |
| CN105299787A (en) * | 2014-11-27 | 2016-02-03 | 上海市建筑科学研究院(集团)有限公司 | Total air section treatment combination type air conditioner system high in filtering efficiency and low in running energy consumption |
| CN205807692U (en) * | 2016-07-13 | 2016-12-14 | 北京易净优智环境科技有限公司 | Platinum Embedded Double circulating purification system |
| CN106440029A (en) * | 2016-09-22 | 2017-02-22 | 殷晓冬 | Fresh air purifying system with intelligent automatic control function |
| US20180319256A1 (en) * | 2017-05-05 | 2018-11-08 | Carl Freudenberg Kg | Ventilation system in a mobile structure and method for operating a ventilation system in a mobile structure |
| CN212057653U (en) * | 2020-04-01 | 2020-12-01 | 中国建筑西南设计研究院有限公司 | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration |
-
2020
- 2020-04-01 CN CN202010248439.1A patent/CN111442451A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322628A (en) * | 2013-07-10 | 2013-09-25 | 中国建筑西南设计研究院有限公司 | Air conditioning cabinet for controlling indoor air pollution in haze days and operating method thereof |
| CN105299787A (en) * | 2014-11-27 | 2016-02-03 | 上海市建筑科学研究院(集团)有限公司 | Total air section treatment combination type air conditioner system high in filtering efficiency and low in running energy consumption |
| CN205807692U (en) * | 2016-07-13 | 2016-12-14 | 北京易净优智环境科技有限公司 | Platinum Embedded Double circulating purification system |
| CN106440029A (en) * | 2016-09-22 | 2017-02-22 | 殷晓冬 | Fresh air purifying system with intelligent automatic control function |
| US20180319256A1 (en) * | 2017-05-05 | 2018-11-08 | Carl Freudenberg Kg | Ventilation system in a mobile structure and method for operating a ventilation system in a mobile structure |
| CN212057653U (en) * | 2020-04-01 | 2020-12-01 | 中国建筑西南设计研究院有限公司 | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112460758A (en) * | 2020-11-16 | 2021-03-09 | 珠海格力电器股份有限公司 | Combined air conditioner, control method and storage medium |
| CN113864959A (en) * | 2021-10-19 | 2021-12-31 | 苏州沈氏净化设备有限公司 | Combined clean air conditioner box with variable filtering efficiency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111457531A (en) | Variable working condition air conditioning unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof | |
| CN106123193B (en) | A kind of PM2.5And CO2The Intelligent fresh air ventilator and fresh air processing method of joint control | |
| CN204574262U (en) | Fresh air conditioner | |
| CN103807928A (en) | Wall-mounted ventilation purifier | |
| CN207394975U (en) | Cabinet-type indoor fresh air purification air-conditioning | |
| CN103644600A (en) | Intelligent purifying and bacteriostatic air processing unit | |
| CN208059188U (en) | A kind of ceiling mounting type Total heat exchange fresh air purifier with interior circulatory function | |
| CN212057653U (en) | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration | |
| CN214664970U (en) | New fan of multichannel circulation | |
| CN111442451A (en) | Variable working condition fresh air handling unit aiming at dynamic fluctuation of pollution concentration and operation control method thereof | |
| CN204358858U (en) | Fresh-air ventilation and air cleaner | |
| CN111981588A (en) | Fresh air purification unit system and operation control method thereof | |
| CN111473456A (en) | Fresh air system and using method | |
| CN212029816U (en) | Variable working condition air conditioning unit aiming at dynamic fluctuation of pollution concentration | |
| CN205208797U (en) | Fresh air purifier | |
| CN109028435B (en) | Novel air supply device | |
| CN213273068U (en) | Multifunctional purification unit for infectious ward | |
| CN202938466U (en) | Multifunctional air conditioner terminal provided with heat recovery device | |
| CN206131315U (en) | Air current switching fabric of unit is handled to air quality | |
| CN104689647A (en) | Air purifying device | |
| CN110906486A (en) | Air circulation type capillary network air conditioner and control method thereof | |
| CN215809040U (en) | Two cold sources "tie haze epidemic" and combine intelligent purification new trend air conditioning unit | |
| CN216204144U (en) | Air treatment equipment integrating ion waterfall air purification and automatic cleaning | |
| CN206609082U (en) | Fresh air cooperated with return air air-supply anti-haze air-conditioning system | |
| CN212901882U (en) | Purification energy-saving engineering system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Si Pengfei Inventor after: Rong Xiangyang Inventor after: Shi Lijun Inventor after: Yang Zhengwu Inventor after: Hou Yubo Inventor after: Liu Xichen Inventor after: Li Pengyu Inventor before: Si Pengfei Inventor before: Rong Xiangyang Inventor before: Shi Lijun Inventor before: Yang Zhengwu Inventor before: Hou Yubo Inventor before: Liu Xichen Inventor before: Li Pengyu |
|
| CB03 | Change of inventor or designer information |